WORLD HISTORY

Detailed explanation-1: -In May 1955 West Germany joined NATO, which prompted the Soviet Union to form the Warsaw Pact alliance in central and eastern Europe the same year.

Detailed explanation-2: -The Warsaw Pact was a collective defence treaty established by the Soviet Union and seven other Soviet satellite states in Central and Eastern Europe: Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland and Romania (Albania withdrew in 1968).

Detailed explanation-3: -Establishing the Warsaw Pact Similar to NATO, it represented a collective defense treaty signed between the Soviet Union and seven Eastern Bloc socialist countries: Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, and Romania.

Detailed explanation-4: -The North Atlantic Treaty Organization was created in 1949 by the United States, Canada, and several Western European nations to provide collective security against the Soviet Union. NATO was the first peacetime military alliance the United States entered into outside of the Western Hemisphere.

Detailed explanation-5: -Britain, France, the United States, Canada, and eight other western European countries established the North Atlantic Treaty Organization (NATO) in 1949. In 1955, the Soviet Union responded by created the Warsaw Pact.